Wood shaper



Feb. 1,1927. v 1,615,893

4 E. F. WAGNER WOOD SHAPER Filed Auz. 16, 1926 2 Sheets-Sheet 2 SIAHINVENTOR 500mm? E Mia:-

Patented Feb. 1, 1927.

r t'l 'l' F-FICE.

EDW'ARD F. WAGNER, OF SOUTH BEND, INDIANA AESIGNOE TO THE STUDEBAKERCORPORATION, OF SOUTH" BEND, INDIANA, A CORPORATION OF NEW JERSEY.

WOOD SHAPE R.

Application filed August 18, 1926. Serial No. 129,495.

This invention relates to shaping ma chines, and particularly to thoseof the wood-shaping type, the principal object being to provide suchmachines with stationary work guiding collars to prevent flaws andinaccuracies from occurring in the finished article, which might resultfrom undue vibrations of the rotating cutter tools when the work isguided directly against such tools.

Another object is to provide wood shaping machines with guide collarswhich are sta tionary in relation to the rotary spindles and areadjustable to compensate for changes in diameters of the cutter toolsfrom wear or other causes.

Another object is to provide wood shaping machines with work-guidingcollars comprising an inner part fixed in the table bed and a taperedcon-e member threaded on to this part, which cone member may be adjustedto move a series of balls outwardly in order to expand a ring or collaragainst which the work is guided whereby the same may be positioned toetl'ect the proper relation between the work and the cutter tool.

These being amongthe objects of the present invention, the same consistsoi certain features of construction and combinations of parts, to behereinafter described with reference to theaccompanying drawings, andthen claimed, havingthe above and other objects in view.

In the accompanying drawings which illustrate a suitable embodiment ofthe present invention.

Figure 1 is a partial side View of a wood shaping machine having aportion of the table bed cut away to show the embodiment of thisinvention.

Figure 2 is an enlarged. plan view of a portion of the table bed, thewor; guiding collar, cutters and a partly finished article.

Figure 3 is a section taken on the line 3-3 of Figure 2 more clearlyshowing the detail parts of the guide collar.

Figure t isan enlarged View of the work spindle and cutter bladesshowing the method of securing the same in position.

Referring now to the accompanying drawings in which like numerals referto like parts throughout the several views, the wood shaper is providedwith brackets 11 to which are attached suitable bearing members 12 bymeans of the bolts 13. Contained within the bearings 12 and supported bythe lower of the same is an upright rotatable spindle 14: which extendssomewhat above the table bed 15 and is provided with a tl'ireaded boltend 16 of less diameter, as shown in Figures 3 and 1-, the upper end ofthe spindle lat providing an annular shoulder 1?. A. suitable pulley18is secured to the spindle 1% between the bearings 12, which spindle 14-is rotated by means ota suitable belt contacting with the pulley 18.

The cutter head comprises a lower collar 19 positioned on the bolt end16 of "the spindle M and abutting against the shoulder 1i, and aco-operating collar 20 also positioned on the bolt end 16, both of whichare provided in their adjacent faces with V shaped grooves 21 torreceiving and retaining' suitable cutter knives A washer 23 and a nut 24threaded on to the bolt end 16 tends to force the upper collar 20 dow?wardly toward the lower collar 19 to clamp the cutter knives 22 in rigidand fixed position.

Referring particularly to Figures 2 and 3, an annular plate 25 is shownsecurely held in the table bed 15 and is provided with a hub 26connected therewith by the integral spokes 27. The hub portion 26 haspinned to its inside tace by pins 28 extending through the spokes 27, acylindrical member 29 which encircles but doesnot contact with thespindle 14: and collar 19 and extends above the top of the table bed 15up to a point just below'the cutter knives 22, the upper edge thereofbeing provided with an outwardly extending annular flange 30. Threadedon to the central part of the cylinder 29 is a tapered adjusting ring 31hav ing a number of projecting lugs 32 to facilitate turning of the sameon the cylinder 29. Encircling the tlange is a flatv band the free endsof which are provided with cars 34:, through which a bolt 35 extends.coil springs 36 being" placed between each ear 34 and the ends of thebolt 35, the one end being provided witha thumb nut 37 threadedthereonto. Resting on the tapered surface of the adjusting ring 31 are aseries of balls 38 which also bear against the under surface of theflange 30 and partly seat in a groove in the flat band 33. Stops 39positioned at the free ends of the band 38 prevent the balls "38 frombecoming displaced.

The band 33 as shown in Figures 2 and 3 provides the work guiding collarmentioned in the objects of the invention and a partly finished woodenarticle 40 is shown as being guided by this collar and having an edgethereof being rounded by the cutter knives 22 which extend outwardlypast the edge of the band 33.

The bearings 12 may become worn and allow the spindle 14L and thereforethe cutter head to vibrate, which, in case the work guiding collar wasnotprovided, would cause the surface of an article being finished to beuneven and ragged, and the work would be ditiicult to hold. With thework being guided by such a. collar, evenly finished work can beobtained easily.

The continued use of knife blades causes them to wear down therebycausing a change in the distance from the edge of the band to thecutting edges of the blades. As mentioned in the objects of theinvention the band or guide collar can. be adjusted to obtain the properproportion between the work and the cutter blades. To increase thediameter of the work guiding band 33, the thumb nut 37 may be loosenedto oecrease the tension in the springs 23 i and the tapered ring 31 isscrewed upwardly on the cylinder 29, the tapered portion causing theballs 32% to expand the band 33. After the band 33 is expanded theproper amount, the thumb nut 37 may be screwed down to clamp the band 33in proper position against the balls 38.

From the foregoing description, it can be seen that the work guidingcollar, in addition to providing a satisfactory guide for the work beingfinished provides an easily operatable means for obtaining the correctproportion between the work and edges of the cutter tools.

Formal changes may be made in the specific embodiment of the inventiondescribed without departing -from the spirit and substance of the broadinvention the scope of which is commensurate with the appended claims.

What I claim is 1. Work guiding means for a wood shaper comprising anaxially fixed split ring, an axially movable cone, and meansco-operating with both said ring and said cone for regulating thediameter of said ring by axial movement of said cone.

2. lVork guiding means for a wood shaper comprising an axially fixedexpansible collar, a cone member arranged concentrically therewith,slidable means between said collar and said cone member, and means forvarying the axial position of said cone member whereby said slidablemeans is caused to move radially in respect to said collar and said conemember to control the diameter of said collar.

8. Work guiding means for a wood shaper, comprising a fixed abutment, aninclined plane movable relative thereto, a radially adjustable abutment,and slidable means confined between said abutments and said inclinedplane whereby said radially adjust able abutment may be adjusted uponmovement of said inclined plane axially thereto.

4. Work guiding means for a wood shaper comprising an expansible collar,a cone con centrically arranged within said collar, an abutment, andslidable members confined between said collar, cone and abutment, saidcone being axially adjustable whereby to control the radial position ofsaid slidable members and said collar in respect thereto.

5. In a wood shaper, a cutter spindle provided with a cutter, asupporting collar surrounding said spindle and provided with an endabutment, a cone supported on said collar 1 01 axial movement, anaxially stationary expansible collar concentrically arranged in respectto said cone, and slidable members arranged between said cone,abuti'nent and expansible collar.

6. In a wood shaper, a cutter spindle provided with a cutter, asupporting collar under said cutter terminating in an abutment :uljacentsaid collar, an axially adjustable con-e supported by said collar, asplit band ring concentrically arranged inv respect to said cone andpositioned adjacent said outter and providing work guiding means, ball,-bearings confined between said cone, abutment and ring, and resilientmeans co-operating with the free ends of said ring tending to contractsaid ring.

7. In a wood shaper, a cutter spindle pro vided with a cutter, a fixedcollar encircling said spindle and terminating in an outwardly extendingabutment-flange adjacent said cutter, a ring provided with a conicalface adjustably mounted for axial movement on said collar, a. splitbandwork guide encircling said collar between said abutmentl'lange and saidring and provided with s ring means for drawing the free ends thereoftowards each other, a race-way on the in nor -:r'ace of said band,ball-bearings seated in said race-way and contacting with saidabutment-flange and said conical face, and means for causing axialmovement of said ring and for varying the tension of said spring means.

Signed by me at South Bend, Indiana. U. S. A., this 14th day of August,1926.

EDl/VARD F. WAGNER.

